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Development of Urban Mines as Urban Resource Recovery Centers to Utilize Solid Waste and Create a Holonic Path for a Sustainable Society

发展城市矿山作为城市资源回收中心，利用固体废物，为可持续社会创造完整路径

基本信息

批准号：
16206090
负责人：
TSUNEKAWA Masami
金额：
$ 28.54万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2007
项目状态：
已结题

项目摘要

Industrial systems and daily life in Japan are shifting to become recycling-based to reduce energy and resource consumption. To establish a society based on recycling, urban resource recovery centers (urban mines) are important as places to reduce waste volumes, reusing and recycling valuable materials with application of mineral processing technology. The authors have studied advanced mineral processing technology for urban mines, and have developed new processes as described below. Based on these results, the creation of a holonic path in a sustainable society is discussed and proposed.1) A process for recycling of plastics and metals from scrapped copy machines was developed and a processing Pilot plant was constructed around the RETAC jig developed in our laboratory.2) A process for recovering fine and high quality glass from waste fluorescent lamps was developed using RETAC jig.3) A hybrid jig using the differences in specific gravity and surface affinity for water was developed for separating plastics with the same specific gravities.4) A metal recovery process for incinerated municipal solid waste was developed using leaching and cementation-in-pulp methods.5) A process for recovering electrode materials from waste nickel metal hydride batteries was developed using selective crushing at low temperature and with 3 stages magnetic separation.6) A microencapsulation method to remediate soils contaminated with heavy metals was developed.7) A process to recover heavy metals and to remediate soils contaminated with heavy metals was developed using a hybrid method combined with leaching, cementation and magnetic separation.8) Sustainable societal systems linked with urban mines are discussed and proposed.

日本的工业系统和日常生活正在转向以循环为基础，以减少能源和资源消耗。为了建立一个基于回收的社会，城市资源回收中心（城市矿山）是重要的地方，以减少废物量，再利用和回收有价值的材料与矿物加工技术的应用。作者研究了城市矿山的先进选矿技术，并开发了以下新工艺。基于这些结果，1）开发了一种从废弃复印机中回收塑料和金属的工艺，并围绕本实验室开发的RETAC跳汰机建造了一个加工中试工厂; 2）开发了一种从废荧光灯中回收精细和高质量玻璃的工艺。利用比重和表面亲水性的差异，开发了一种混合跳汰机，用于分离比重相同的塑料。4）采用浸出法和水泥浆法开发了城市生活垃圾焚烧金属回收工艺。采用低温选择性破碎、三级磁选的方法回收废旧镍氢电池中的电极材料。提出了一种微胶囊化修复重金属污染土壤的方法。7）提出了一种浸出、胶结和磁选相结合的重金属回收和修复方法。8）讨论并提出了与城市矿山相关的可持续社会系统。